Food strainer



R. H. CARPENTER April s, 1930.

FOOD STRAINER Filed llarch 30. 1927 Hill n o a Patented Apr. 8, 1930 UNITED STATES PATENT/OFFICE .RUSSELL H.CARPENTER, OFMADISON, WISCQNSIN kFOOID STRAINER Application filed March ac, '1927. .serial No. 179,590.

Anotherobject of the inventionA is to pro#` '15 vide animproved crank shaft construction especially adapted for use in such machines and by means of which a simple andl eflicient crank shaft may be economically constructed. Other objects will appear hereinafter. In attained by providing Va suitable supporting frame of improvedand economical construction in which a substantially hemispherical straining sieve is removably (mounted. Cooperating with said sieve is a crankshaft provided with a adapted and arranged toforce the food material through said sieve.

The invention consists in the combinations and arrangement of scribed and claimed. v

The invention will be best understood by reference to the accompanying drawings forming a part of this specification and in which,

Fig. 1 is a side view shown partially in section, of a food strainer embodying the invention;

Fig. 2 is a vertical section taken substantially on line 2-2 of Fig. l;

Fig. 3 is a horizontal section taken substantially on line 3-3 of Fig. 1, and Fig. 4 is a section taken substantially on either of the lines 4-4 of Fig. 1. A

The preferred form of construction as illustrated in the drawings comprises a base member 5 in the form of a ring made from a metal strip secured in ringform to rest, as indicated, on a table top, or the like. An upstanding frame member formedV from a general the objects of the invention areV peculiarly shaped blade parts hereinafter de` single metal strip inverted U-form, is'secured shown, preferably 6, bent into substantially tothering 5, as by spot-welding. An intermediate supporting ring 7 is also secured to the sides of the frame 6 by means of spotwelding, as indicated.V y l l i A straining sieve 8 substantially in hemispherical formis removably mounted inthe frame thus provided, said sieve being provided at its upper and supporting rim turned supporting said rim 9 being of edges with a reinfo vcing Q'having an outwardly bead l() at its upper edge, asize to litsnugly within the fing 7 and said `11p 1o; beingnraged; as

shown, to rest upon sides ofthe frame to accommodate said the top offsaid ring, ,the beingv outwardly bowed lip asgshown. vBy this arrangement the sieve 8A will belwrmly supported inthe frame removed whenl desired placing.A y y A brace'12, in t :bent into substant y its .ends spot-welded to the sides of the frame V6, 1s' v,extended acr said frame, asfshcwn, 1s rotatably and and yet fmay be` readily v for cleaning or rehe form Vof almetal strip iallyy Uform `and having oss the upperl portion Vof and a crank shaft 13 slidably mounted, as indicated, in said cross bracek and in the top of the frame 6.' The crank shaftylS is preferably formed, as shown, ofa singlelpiece of wire having its up arm 14, the end of said per end bentinto ajcrank crank arm being bent to'form the eye 1,5v and to cause thebent end 16`to cross the body-.14 of itself, as best shown n fthe crank innige.;

IA hand1e17 islooselyfmounteds shown, Y

16,said handle thus-,restupon the bent end for said handle, as

ing againsty the bodyl of the vcrank 14,` 'said crank thus serving as astop and` support indicated. i

`At its' lower end the crank' s'haft'lwS carries ablade 18 having two oppositely disposed arms as shown, said4 blade-arms being arranged to ,form

a'wedgingl angle with the sieve 8. As indicated, the rear edges2() of the varms ofthe blade 18 are arranged and curved to contactwith the bottom and sides of the Vsieve 8 when said crank shaft is in depressed position,

saidrear` edges20 of said blade arms being arranged on rearwardly Y receding curves as shown.

By this arrangement it will be noted that food in the sieve 8 will be forced by the wedging action between the blade arms 18 and the sieve 8 through the meshes of said sieve as the crank shaft 13 is rotated yand pressed downwardly. v Owing to the rearwardly receding curve of the rear edges of each of the arms 18, said rear edges exert an upwardly and outwardly smearing or wiping action on the material under the blade, tending to force said material upwardly and outwardly along the sieve, thus tending to'break up said material into ine particles and force thesa-me through the meshes of the sieve. Any particles failing to pass through the sieve meshes are forced upwardly and outwardly until they pass ,over the upper rear extremity of the blade arm when they tend to fall of their own weight into the bottom of the sieve and-,again be subjected to the upwardv and outward smearing action of the blade arms. Y

The shaft 13 may be readily raised for the accommodation of the material to `be strained and to permit .the ready removal of the sieve. As the quantity of material in the sieve decreases theshaft and blades areforced ydownwardly-to cause continuous pressure on material contained. v

The specific form yand arrangement of parts is a simple andl effective one for the purpose.

While I.have illustratedV and described the preferredform of construction for carrying the invention into effect, this is capable of variation and modification without departing lfrom the spirit of the invention. I, therefore, do not wish to ybe limited to the precise details of-construction set forth but desire to avail myself of such variations and modifica'- tions as come within the scope of the appended claims. l v

I claim; v

1. A food strainer comprising a sieve member and a rotatable blade co-operating therewith, said blade being arranged at an acute wedging angle to said sieve withits rear edge contacting with the sieve on a rearwardly receding curve.

2. vA food strainercomprising a substantially hemispherical sieve vmember Yanda rotatable Yblade co-operating therewith, said blade being arranged at an acute'wedging angle to saidsieve withits rear edge contacting with the sieve `on. a rearwardly receding curve. I Y

"3. VIn combination, a base ring adapted to rest at u on a table top or thejlike; an upstanding rame member consisting of a strip of metal bent into substantially inverted U- shape, withthe lower ends lof the same secured tothe sides of said ring; an intermediatering supported on and secured to said the p ring; a substantially U-shaped brace member secured to the sides of said upstanding frame member ;a crank shaft mounted in the top of 'said upstanding frame member andin said end of said brace; and a blade at the lower crank shaft co-operating with said sieve.

4. A food strainer comprising a sieve-member;a spindle arranged substantially at the center of said sieve; and two oppositely disposed radiating blades on said spindle, each of said 'blades being arranged at an acute wedging angle to said sieve with its rear edge contacting with the sieve on an outwardly and rearwardly receding curve.

5. AA foodstrainer comprising a substantially hemispherical sieve member; a spindle arranged substantially at the center thereof; and two oppositely 'disposed radiating blades on said spindle, each of said blades being arranged atan acute wedging angle to said dge contacting with the sieve with its rear e sieve on an outwardly, upwardly and rearwardly receding curve.

In witness that Ijclaim the foregoing as my invention, I affix my signature this 26 day of March, A. D. 1927.

' `RUSSELL H. CARPENTER.

upstanding frame member; a sieve member .i detachably supported on said :intermediate V Y 

